Add MemoryCoordinatorImpl::OnChildVisibilityChanged()

Add MemoryCoordinatorImpl::OnChildVisibilityChanged()

This is a follow-up CL of crrev.com/2718963002. Use the same logic for
child process state initialization and visibility changes.

BUG=696844

[bashi, 2017-03-06 01:54:18]

The CQ bit was checked by bashi@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2017-03-06 01:54:32]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[bashi, 2017-03-06 01:55:13]

bashi@chromium.org changed reviewers:
+ haraken@chromium.org

[bashi, 2017-03-06 01:55:13]

PTAL

[haraken, 2017-03-06 01:57:55]

LGTM

[commit-bot: I haz the power, 2017-03-06 03:18:53]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2017-03-06 03:18:53]

Dry run: Try jobs failed on following builders:
  android_n5x_swarming_rel on master.tryserver.chromium.android (JOB_FAILED,
https://build.chromium.org/p/tryserver.chromium.android/builders/android_n5x_...)

[bashi, 2017-03-06 03:34:32]

The CQ bit was checked by bashi@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2017-03-06 03:34:43]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-03-06 04:24:02]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2017-03-06 04:24:02]

Dry run: This issue passed the CQ dry run.

[bashi, 2017-03-06 04:28:41]

The CQ bit was checked by bashi@chromium.org

[bashi, 2017-03-06 04:28:42]

The patchset sent to the CQ was uploaded after l-g-t-m from haraken@chromium.org
Link to the patchset: https://codereview.chromium.org/2735633002/#ps20001
(title: "fix test")

[commit-bot: I haz the power, 2017-03-06 04:28:49]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-03-06 04:32:21]

CQ is committing da patch.

Bot data: {"patchset_id": 20001, "attempt_start_ts": 1488774521694070,
"parent_rev": "f4c976fc1f4578b0c75ba304553ef2ff6134f551", "commit_rev":
"9a71b6540c7dce7068c4abe0317e740f504986fc"}

[commit-bot: I haz the power, 2017-03-06 04:36:50]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2017-03-06 04:36:52]

Prior attempt to commit was detected, but we were not able to check whether the
issue was successfully committed. Please check Git history manually and re-check
CQ or close this issue as needed.

[bashi, 2017-03-06 23:56:08]

Description was changed from

==========
Add MemoryCoordinatorImpl::OnChildVisibilityChanged()

This is a follow-up CL of crrev.com/2718963002. Use the same logic for
child process state initialization and visibility changes.

BUG=696844
==========

to

==========
Add MemoryCoordinatorImpl::OnChildVisibilityChanged()

This is a follow-up CL of crrev.com/2718963002. Use the same logic for
child process state initialization and visibility changes.

BUG=696844
==========